blake



E. s. & H. @BLAKE Ore Crusher Frame.

WM/M) No. 232,669. Patented Sept. 28,1880.

Fifi

feJ-.sgvqfm HER, WASHINGTQN n c N. PErEFS. Frm

UNITED STATES BATENT @Erica EDWARD S. BLAKE AND HENRY H. BLAKE, OFPITTSBURG, PA.

ORE-CRUSHER` FRAM E.

SPECIFICATION forming part of Letters Patent No. 232,669, datedSeptember 28, 1880.

Application filed December 29, 1879.

. specification.

Figures l and 2 are details.. Fig. 3 is a view of the skeleton of frame;Fig. 4, a horizontal section of saine; Figs. 5 and 6, details; Fig. 7 alongitudinal vertical section of rframe complete.

Our invention has for its objectthe construction of a crushing-machinein which those parts subjected to the greatest strain shall be ofwrought-iron or steel, whereby the net Weight of the machine can be verygreatly reduced without taking from its strength or durability.

The invention consists in the method we adopt of combining and unitingwrought-iron side bars and cast-iron ends to form the main body of aCrusher-bed; further, in the manner of arranging the said side bars andcast-iron legs, whereby the side bars are supported and stiifened;further, in the combination of the legs with the check-guards orcurbs,and of the guards with the checks and frame, and in the construction andarrangement of parts,

Y all as hereinafter fully described.

In practicing our invention we proceed as follows: Two or morewrought-iron or `steel side bars, A, are made, each having the lateralend lug or shoulder, c. These bars may be flat, square, round, or othershape. A heavy casting, B, with or without the legs b, is made withnotches' in its side edges'corresponding in shape to the section of theside bars, A, and this casting constitutes the rear end of the machine.A casting, C, similarly formed, but without legs, forms the front end ofthe machine, and constitutes, whollyT or in part, the fixed jaw of thecrusher. The side bars, A, are laid in the notches with the shoulders crespectively resting against the front and rear sides of the cast-ironend pieces, and are either bolted together by rods c, as shown in Figs.3 and 4t, or are held by screws or bolts passing into the castings orthrough them. We thus have that portion of the frame which receives theheaviest strains composed of wrought-iron bars, and it may be easily andrapidly put together by any ordinary mechanic.

As we prefer to make the front ca-sting, C, without legs, we provide forthe support of that end of the frame in the following manner, whilesecuring the other objects of our invention: We Inake a single castingcomprising the side D, which forms the support for the main shaft andvibrating jaw, the side leg, E, having notches in its inner facecorresponding to the location of the side bars, A, a lug, d, and a lugor shoulder, e, all as shown in Figs. 5, 6, and 7. Two such castings areemplo yed, the lower edge of sides D resting upon the upper side bars,A, and the rear end abutting against the casting-B, as shown. Leg Epasses down outside the bars A, which rest in the notches therein. Infront of and bearing against the two lugs d and c, which we prefer tolocate in a diagonal line, is a transverse bar, F, which passes down onthe inside of side bars, A, and is fixed by bolts passing through thelegs E and sides D, preferably with countersunk heads inside and nutsoutside. Thus arranged, the bars F serve to hold the casting D E inposition with reference to the side bars, and also constitute curbs forthe cheeks g, which slide down between them'and the front casting, C.Thus the cheeks g, having rear edge inclined, form the stiffening orwedging pieces between the castings B, D, and C, insuring the utmostfirmness and compactness, so that no jarring or rattling can take placewhen the crusher is in operation.

The frame is light, portable, and very strong, an d the strains aredistributed to the best possible advantage. The longitudinal strains areborne by wrought-iron bars, whose lateral shoulders must be sheared oftby the strain before the jaws can yield. This in ordinary or evenextraordinary practice cannot occur, as these machines usually have abreak-down point, which gives way to any such excessive strain. Thevertical strains upon the shaft and jaw-bearings come upon the castingsD, from which they go to the bars A and become roo` ever, theconstruction rst referred to.

We claim as our invention- 1. In a crusher-frame having the ends B C andthe side bars, A, the combination therewith of the combinedshaft-supporter and legs 15 D E, substantially as specified.

2. The crusher-frame comprising, in combination, the shouldered bars A,ends B C, supports D E, and bars F, arranged and constructedsubstantially as specified.

In testimony that We claim the foregoing We have hereunto set our hands.

EDWARD S. BLAKE. HENRY H. BLAKE.

Witnesses:

G. W. RANKIN, JAMES MOLAIN.

